Almost everyone who visits the Riviera Maya has thought, at least once, "I could live here." Some people forget it by the end of the week. Others start planning. If you are in the second group, here is an honest look at daily life, beyond the postcard. At a glance Cost: typical budgets run from about $1,750 to $5,000 USD a month or more, depending on lifestyle. Biggest expense: housing, usually 30% to 40% of the monthly budget. The upside: beaches, cenotes, ruins and a strong